321012304310020 has 24 divisors (see below), whose sum is σ = 679271837827968. Its totient is φ = 127424731480800.

The previous prime is 321012304309969. The next prime is 321012304310041. The reversal of 321012304310020 is 20013403210123.

It is a junction number, because it is equal to n+sod(n) for n = 321012304309973 and 321012304310000.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61261887516 + ... + 61261892755.

It is an arithmetic number, because the mean of its divisors is an integer number (28302993242832).

Almost surely, 2^{321012304310020} is an apocalyptic number.

It is an amenable number.

321012304310020 is an abundant number, since it is smaller than the sum of its proper divisors (358259533517948).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

321012304310020 is a wasteful number, since it uses less digits than its factorization.

321012304310020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122523780411 (or 122523780409 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 321012304310020 its reverse (20013403210123), we get a palindrome (341025707520143).

The spelling of 321012304310020 in words is "three hundred twenty-one trillion, twelve billion, three hundred four million, three hundred ten thousand, twenty".